sesquicentennial
ses·qui·cen·ten·ni·al
noun \-sen-ˈte-nē-əl\Definition of SESQUICENTENNIAL
: a 150th anniversary or its celebration
— sesquicentennial adjective
First Known Use of SESQUICENTENNIAL
1880
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Previous Word in the Dictionary: sesquicentenary
All Words Near: sesquicentennial
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